Icelandic tephrochronology - matching the provenance of proximal and distal volcanic glasses using La-ICPMS trace element data

Martin Menzies 1 E. Tomlinson 1 Wolfgang Muller 1 T. Thordarson 2 Christine Lane 3 Vicky Smith 3 S. Blockley 4
1 Earth Sciences Royal Holloway
2 University of Edinburgh
3 Research Laboratory for Archaeology & the History of Art
4 Department of Geography
Abstract : Thorarinsson (1944) pioneered the use of tephrochronology and its application in NW Europe. The basis of this chronological tool is the use of time-parallel marker tephra (i.e., ash <2mm) horizons to correlate proximal volcanic deposits with distal tephras found in marine-lacustrine-ice cores and terrestrial sequences. The trace element geochemistry of volcanic glasses [determined by LA-ICPMS] offers an improved diagnostic tool for matching the juvenile components of proximal and distal tephras and has considerable potential for assigning provenance to cryptotephras (<100 microns) provided they are of sufficient size and thickness.
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Communication dans un congrès
Iceland in the Central Northern Atlantic : hotspot, sea currents and climate change, May 2010, Plouzané, France
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Soumis le : vendredi 7 mai 2010 - 19:43:33
Dernière modification le : jeudi 26 octobre 2017 - 16:34:02
Document(s) archivé(s) le : jeudi 16 septembre 2010 - 14:01:43

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Martin Menzies, E. Tomlinson, Wolfgang Muller, T. Thordarson, Christine Lane, et al.. Icelandic tephrochronology - matching the provenance of proximal and distal volcanic glasses using La-ICPMS trace element data. Iceland in the Central Northern Atlantic : hotspot, sea currents and climate change, May 2010, Plouzané, France. 〈hal-00482055〉

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